This is one epic tantrum.

Witnesses say a woman flipped out before her flight took off and proceeded to kick, scream, and curse before finally stripping her clothes off. 

One passenger posted part of the meltdown on Youtube, which shows the unruly woman on a Frontier Airlines flight from Denver to Portland, Oregon.

The witness said the woman's behavior was erratic even before boarding, as she could be seen spontaneously laughing and crying.

Once the plane was ready for takeoff, her mood got even crazier, as she could reportedly tried to pull out an oxygen bag.

Denver police confirmed that one person was removed from the flight.